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The effect of inbreeding on the growth ability of meat sheep breeds in the Czech Republic

Author

Listed:
  • Michaela Černá

    (Department of Ethology and Companion Animal Science, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague-Suchdol, Czech Republic
    Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • Michal Milerski

    (Institute of Animal Science, Prague-Uhříněves, Czech Republic)

  • Michala Mušková

    (Institute of Animal Science, Prague-Uhříněves, Czech Republic
    Department of Genetics and Breeding, Faculty of Agrobiology, Food and Natural Resources, Czech University of Life Sciences Prague, Prague-Suchdol, Czech Republic)

Abstract

The aim of this study was to present the trend of inbreeding and to estimate the effect of inbreeding on the growth ability of lambs in the three most common sire breeds in the Czech Republic: Suffolk (SF; n = 49 345), Charollais (CH; n = 14 189) and Texel (T; n = 10 481). The growth ability of lambs was evaluated between 2000 and 2019 based on the weight at 100 days of age. The average inbreeding coefficient for Suffolk, Charollais and Texel was 0.013, 0.012 and 0.011, respectively. The average number of known generations was 5.260 for Suffolk, 3.355 for Charollais and 3.709 for Texel. To evaluate growth ability, lambs were divided into four groups according to the inbreeding coefficient (F = 0.00, 0.00 < F ≤ 0.062 5, 0.062 5 < F ≤ 0.125, F > 0.125). The results of this study show the negative effect of inbreeding on the growth ability of lambs was significant (P < 0.05). The regression coefficients of the weight for Suffolk, Charollais and Texel lambs for a change of 1% in inbreeding were estimated to be -0.028, -0.053 and -0.048, respectively.

Suggested Citation

  • Michaela Černá & Michal Milerski & Michala Mušková, 2021. "The effect of inbreeding on the growth ability of meat sheep breeds in the Czech Republic," Czech Journal of Animal Science, Czech Academy of Agricultural Sciences, vol. 66(4), pages 122-128.
    • Handle: RePEc:caa:jnlcjs:v:66:y:2021:i:4:id:193-2020-cjas
    DOI: 10.17221/193/2020-CJAS
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    References listed on IDEAS

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    1. Wang, Jinliang, 2016. "Pedigrees or markers: Which are better in estimating relatedness and inbreeding coefficient?," Theoretical Population Biology, Elsevier, vol. 107(C), pages 4-13.
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